How can I spray my fields quickly?

Many farmers spray their fields with herbicides to get rid of weeds without killing the crop.Farmers can spray their fields faster if they prefer to use a Sprayer drone like the DJI Agras T40. Using this type of drone saves you time as well as your spray chemicals that fall on the empty space of your fields. So I think if you want to spray your fields early then using drone for spraying purpose is the best option.